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Which of the following statements best describe the termination of transcription in prokaryotes?
In prokaryotes, transcription termination can occur through two main mechanisms: factor-independent termination, where a GC-rich region followed by a poly(U) sequence causes RNA to form a hairpin loop, and factor-dependent termination, where a termination factor called Rho protein binds to the RNA transcript and disrupts the RNA polymerase complex. Both mechanisms lead to the release of the RNA transcript from the DNA template.
The RNA that is in the shape of a cloverleaf or hairpin is?
The RNA that is in the shape of a cloverleaf is transfer RNA (tRNA), while the RNA that is in the shape of a hairpin is messenger RNA (mRNA) or microRNA (miRNA). These structures are important for the function and stability of these RNA molecules in cells.
The correct sequence of the events of transcription is?
RNA polymerase reaches the beginning of a gene.
What is transcription and what are the main steps involved in this process?
Do your own lab report. Jk. Transcription is the process in which DNA is converted into a complementary RNA. Before transcription, the splicing of introns has already occurred. Transcription takes place the nucleus. RNA polymerase begins the elongation of the RNA while the DNA template is unwound and rewound. Transcription responds to the termination signal and disassembles, terminating the process. The RNA is then processed with 5' G cap and poly A tail, and exits the nucleus, heading into the cytoplasm.
How does RNA polymerase read DNA to transcribe genetic information into RNA?
RNA polymerase reads DNA by recognizing specific sequences called promoters, which signal the start of a gene. Once bound to the promoter, RNA polymerase unwinds the DNA double helix and begins transcribing the genetic information into RNA by adding complementary RNA nucleotides. This process continues until a termination signal is reached, resulting in the production of a complete RNA transcript.
Which of the following statements best describe the termination of transcription in prokaryotes?
In prokaryotes, transcription termination can occur through two main mechanisms: factor-independent termination, where a GC-rich region followed by a poly(U) sequence causes RNA to form a hairpin loop, and factor-dependent termination, where a termination factor called Rho protein binds to the RNA transcript and disrupts the RNA polymerase complex. Both mechanisms lead to the release of the RNA transcript from the DNA template.
The RNA that is in the shape of a cloverleaf or hairpin is?
The RNA that is in the shape of a cloverleaf is transfer RNA (tRNA), while the RNA that is in the shape of a hairpin is messenger RNA (mRNA) or microRNA (miRNA). These structures are important for the function and stability of these RNA molecules in cells.
What cause RNA polymerase to stop transcribing mRNA?
RNA polymerase stops transcribing mRNA when it encounters a termination signal in the DNA sequence, typically a specific sequence of nucleotides that signals the end of a gene. This signal can be formed by specific sequences that lead to the formation of a hairpin loop in the RNA, causing RNA polymerase to dissociate from the DNA template. Additionally, termination factors may assist in this process, ensuring that transcription is completed accurately.
What causes transcription to terminate normally?
Transcription normally terminates when RNA polymerase encounters specific sequences in the DNA known as terminators. In prokaryotes, these can be rho-independent sequences, which form a hairpin structure in the RNA, causing the polymerase to dissociate, or rho-dependent sequences, which require the rho protein to facilitate termination. In eukaryotes, termination often involves the cleavage of the newly synthesized RNA followed by the addition of a poly-A tail, signaling the end of transcription. These mechanisms ensure that RNA synthesis is accurately concluded, allowing for proper gene expression.
How does transcription end?
Transcription ends when RNA polymerase reaches a terminator sequence on the DNA template strand. This signals the enzyme to stop synthesizing the RNA transcript and release it. The RNA transcript is then further processed and can be translated into a protein.
The name of the structure that causes the synthesis of RNA to cease is called what?
The structure that causes the synthesis of RNA to cease is called a "termination signal" or "terminator." This sequence in the DNA template prompts the RNA polymerase to detach from the DNA, halting the transcription process. In prokaryotes, this can involve specific sequences that lead to the formation of a hairpin loop, while in eukaryotes, it often involves additional protein factors and cleavage signals.
What is the key words of transcription?
The key steps of transcription are initiation, elongation, and termination. During initiation, RNA polymerase binds to the promoter region of DNA. Then, during elongation, the RNA polymerase synthesizes an RNA copy of the DNA template. Finally, termination signals the end of transcription and release of the RNA transcript.
The correct sequence of the events of transcription is?
RNA polymerase reaches the beginning of a gene.
What amino acid is UAG?
UAG in RNA is amber. In RNA it is a stop codon which is a nucleotide triplet within messenger RNA that signals a termination of translation.
What is the final step of transcription?
The final step of transcription is the termination of RNA synthesis, where the RNA polymerase enzyme reaches a specific termination sequence in the DNA template. This signals the end of the gene, prompting the RNA polymerase to detach from the DNA and release the newly synthesized RNA molecule. The RNA undergoes further processing, such as capping and polyadenylation, before it is ready for translation.
What is RNA closely related too?
What is RNA closely related too? What is RNA closely related too?
What are general process of transcription including the three major steps of initiation elongation and termination?
Transcription is the process by which DNA is converted into RNA. It begins with initiation, where RNA polymerase binds to a specific promoter region on the DNA, unwinding the double helix. During elongation, RNA polymerase synthesizes a complementary RNA strand by adding nucleotides one by one, based on the DNA template. Finally, termination occurs when RNA polymerase reaches a termination signal in the DNA, leading to the release of the newly formed RNA molecule and the dissociation of the polymerase from the DNA.
